Head, legs, antennae and ground color of wings ochreous tan in male, straw color in female. Front and palpi in both sexes reddish. The fore wings subfalcate in the male, falcate in the female. T. a. line very faint, narrow, often obsolete at costa, starts one-fifth out from the base on the costa, runs outwardly oblique to the cell, thence curving usually evenly, sometimes slightly wavy sub-parallel to the outer margin, reaching inner margin about one-fifth out.